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Cheap flights from Illinois to Southampton from £284

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 1/12. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — SOU
6 Aug — 13 Aug1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Illinois to Southampton

Enter your travel dates to find the best prices.

Cheapest flights from Illinois to Southampton
Explore the most affordable flight options available from Illinois to Southampton. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 7 July 2026.

Wed 19/819:25
ORD
-
SOU
2 stops18h 05m
Multiple Airlines
Wed 26/809:20
SOU
-
ORD
2 stops14h 55m
Multiple Airlines
Deal found 5/7£575
Wed 19/815:45
ORD
-
SOU
1 stop21h 45m
Aer Lingus
Wed 26/809:20
SOU
-
ORD
1 stop15h 55m
Aer Lingus
Deal found 5/7£618
Thu 20/821:00
ORD
-
SOU
1 stop16h 30m
Aer Lingus
Thu 27/809:20
SOU
-
ORD
1 stop15h 55m
Aer Lingus
Deal found 6/7£653
Tue 11/819:25
ORD
-
SOU
2 stops15h 25m
Multiple Airlines
Tue 18/809:15
SOU
-
ORD
2 stops15h 00m
Multiple Airlines
Deal found 2/7£658
Thu 29/1017:15
MDW
-
SOU
2 stops18h 45m
Delta
Fri 6/1108:40
SOU
-
MDW
2 stops19h 45m
Delta
Deal found 4/7£801
Wed 19/810:54
MDW
-
SOU
2 stops15h 51m
KLM
Wed 26/809:15
SOU
-
MDW
2 stops19h 21m
KLM
Deal found 5/7£850
Wed 19/809:59
MDW
-
SOU
2 stops16h 46m
Multiple Airlines
Wed 26/814:20
SOU
-
MDW
3 stops30h 15m
Multiple Airlines
Deal found 5/7£893
Mon 13/709:54
MDW
-
SOU
2 stops16h 51m
KLM
Mon 14/1217:30
SOU
-
MDW
2 stops31h 07m
KLM
Deal found 3/7£994
Sun 16/809:59
MDW
-
SOU
2 stops16h 46m
Delta
Sun 23/809:15
SOU
-
MDW
2 stops14h 46m
Delta
Deal found 3/7£1,067
Mon 3/813:25
MDW
-
SOU
2 stops13h 20m
KLM
Mon 10/809:15
SOU
-
MDW
2 stops19h 21m
KLM
Deal found 6/7£1,291
Tue 28/713:18
MDW
-
SOU
2 stops13h 27m
KLM
Sun 9/809:15
SOU
-
MDW
2 stops14h 46m
KLM
Deal found 6/7£1,522
Wed 29/711:05
MDW
-
SOU
2 stops15h 40m
KLM
Sun 9/809:15
SOU
-
MDW
2 stops14h 46m
KLM
Deal found 6/7£1,662

Find flight deals from Illinois to Southampton

Keep the following information in mind while searching for Illinois to Southampton flight deals. Data was last updated 7 July 2026.

Round-trip from

£529

One-way from

£284

Popular in

June

Cheapest in

September

Average price

£721
17/8-24/8
  • 17/8-24/8
  • 4 total stops
  • 36h 10m total
  • Illinois to Southampton
Search Deals
1/12
  • 1/12
  • 2 total stops
  • 17h 10m total
  • Illinois to Southampton
Search Deals
Highest demand for flights based on searches. 26% potential increase in price (£161 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 7% potential price decrease (£31 potential savings vs. average return price).
Search Deals
Average for round-trip flights in July 2026
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Illinois to Southampton that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 7 July 2026.
Use the filters below to find and compare flights from Illinois to Southampton that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

ChicagoSouthampton

ORD - SOU

ORDSOU

Chicago O'Hare Intl

Tue 1/12

11:10-08:10

2 stops15h 00m

Southampton Eastleigh

Fri 11/12

08:40-21:34

2 stops18h 54m

£763

ChicagoSouthampton

ORD - SOU

ORDSOU

Chicago O'Hare Intl

Wed 19/8

16:50-17:35

1 stop18h 45m

Southampton Eastleigh

Thu 27/8

18:05-14:15

1 stop26h 10m

£792

ChicagoSouthampton

ORD - SOU

ORDSOU

Chicago O'Hare Intl

Sun 16/8

05:30-08:45

2 stops21h 15m

Southampton Eastleigh

Fri 28/8

09:15-14:15

1 stop11h 00m

£795

ChicagoSouthampton

ORD - SOU

ORDSOU

Chicago O'Hare Intl

Wed 19/8

12:29-08:45

2 stops14h 16m

Southampton Eastleigh

Wed 26/8

18:05-14:15

1 stop26h 10m

£797

ChicagoSouthampton

ORD - SOU

ORDSOU

Chicago O'Hare Intl

Wed 19/8

15:25-17:35

2 stops20h 10m

Southampton Eastleigh

Wed 26/8

09:15-14:30

1 stop11h 15m

£797

ChicagoSouthampton

MDW - SOU

MDWSOU

Chicago Midway

Thu 29/10

17:15-17:00

2 stops18h 45m

Southampton Eastleigh

Fri 6/11

08:40-22:25

2 stops19h 45m

£801

ChicagoSouthampton

ORD - SOU

ORDSOU

Chicago O'Hare Intl

Wed 19/8

16:50-17:35

1 stop18h 45m

Southampton Eastleigh

Sun 23/8

09:15-14:15

1 stop11h 00m

£830

ChicagoSouthampton

ORD - SOU

ORDSOU

Chicago O'Hare Intl

Fri 11/9

16:20-08:45

1 stop10h 25m

Southampton Eastleigh

Fri 25/9

09:05-14:15

1 stop11h 10m

£831

ChicagoSouthampton

MDW - SOU

MDWSOU

Chicago Midway

Wed 19/8

10:54-08:45

2 stops15h 51m

Southampton Eastleigh

Wed 26/8

09:15-22:36

2 stops19h 21m

£851

ChicagoSouthampton

ORD - SOU

ORDSOU

Chicago O'Hare Intl

Thu 29/10

19:30-19:30

3 stops19h 00m

Southampton Eastleigh

Fri 6/11

09:20-16:45

3 stops37h 25m

£863

Flights are sorted by cheapest return flights first.

Deals found on 6/7

Showing 1-10 of 24 resultsSorted by cheapest first
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Best time to book a flight from Illinois to Southampton

Have a flexible travel schedule? Discover the best time to fly to Southampton from Illinois with our price prediction graph.
Estimated return price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Illinois to Southampton
No data available for this route at this time. Please check back soon.

Related info for your journey

Find useful and relevant information for your journey from Illinois to Southampton. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Southampton from Illinois?

    Most people fly into Southampton Eastleigh (SOU) if they book a flight to Southampton from Illinois. Eastleigh is conveniently located just 3.5 mi from Southampton’s city center.

  • How long is the flight from Illinois to Southampton?

    A quick flight from Illinois to Southampton can take about 15h. KLM provides one of the quickest options available for as low as £763. Illinois and Southampton are separated by a distance of 3921 mi. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

  • Can I find deals for flights from Illinois to Southampton that include hotel bookings?

    Yes. In addition to deals on Illinois to Southampton flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Illinois to Southampton?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Illinois to Southampton.

  • Can I find deals for business class flights from Illinois to Southampton?

    Yes. Cheapflights offers flight deals from Illinois to Southampton by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

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Alternative routes for Illinois to Southampton

See prices for flight routes from nearby airports that may be better suited for you.
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San Francisco to Gatwick flights
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How does Cheapflights help users find flights from Illinois to Southampton?

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Why should you use Cheapflights to find cheap flight tickets from Illinois to Southampton?

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to Southampton from Illinois.

Can Cheapflights find flights from Illinois to Southampton with no change fees?

Need flexible booking options for your flight to Southampton from Illinois? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

Can Cheapflights notify me if prices for flights from Illinois to Southampton become cheaper?

Yes, Cheapflights offers price alerts on Illinois to Southampton flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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